package com.github.walterfan.booklib;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;

/**
 * Created by yafan on 25/6/2017.
 */

@Configuration
@EnableWebSecurity
@ComponentScan("com.github.walterfan.booklib")
public class BooklibConfig extends WebSecurityConfigurerAdapter  {

    @Autowired
    private ReaderRepository readerRepository;

    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests().antMatchers("/")
                .access("hasRole('READER')")
                .antMatchers("*/**")
                .permitAll()
                .and().csrf().disable()
                .formLogin()
                .loginPage("/login")
                .failureUrl("/login?error=true");
        ;
    }

    @Override
    protected void configure(
            AuthenticationManagerBuilder auth) throws Exception {

        auth.userDetailsService(new UserDetailsService() {
                    @Override
                    public UserDetails loadUserByUsername(String username)
                            throws UsernameNotFoundException {
                        UserDetails userDetails = readerRepository.findOne(username);
                        if (userDetails != null) {
                            return userDetails;
                        }
                        throw new UsernameNotFoundException("User '" + username + "' not found.");
                    }
                });
    }
}